Device for retaining heat in foods.



ILS. GOULDTHRITE.

PATENTED NOV. 13, A1906.

DEVICE FOR RETAINING HEAT IN FOODS.

APPLICATION FILED JUNE 17, 1905.

FRANK S. GOULDTHRITE, OF OTTA'WA, ONTARIO, CANADA., ASSIGNOR OFy ONE-HALF TO VILLIAM MILLER JONES, OF WEST NEW BRIGHTON,

NEW YORK.

DEVICE FOR RETAINING HEAT IN F'OODS- y Specification of LetterskPatent.

Patented Nov. 13, 1906.

Application filed June 17,1905- Seral No. 265,693.

.To @ZZ whom, t may concern:

Be it known that I, FRANK S. GOULD- Tulare, a subject of the King of England, re-

siding` at Ottawa, in the Frovince of Ontario and Dominion of Canada, have invented an Improvement in Devices for Retaining Heat in Foods, of which the following is a specification.

, Heretcfore numerous vessels of various constructions have been designed to retain heat in foods; but so faras I am aware none of these have included means whereby the heat of the food contained in a number of receptacles placed in such vesselsy could be retained for varyinglengths of time, depending upon when the food in a particular receptacle was to be required for use.

. N ow the object of my invention is the rovision of a device for retaining heat in `ood which is particularly adaptedy for use in the feeding of infants at night and so constructed that the food being once heated and placed in bottles or other holders, which in turn are placed in the heat-retainer,\the `heat in the food in the respective bottles will be retained sufiiciently long for the temperature of the food in the several bottles to be that desired for feeding from the respective bottles at-the different predetermined times.

In carrying out my invention I employ an outer vessel, a spaced-apart inner vessel, vertical Walls dividing the inner vessel into compartments, Walls providing a receptacle in each compartment for bottles or other holders containing food the heat in which it is desired to retain, and means for permitting the How of a heated liquid-from one to another of the compartments, all of Which Will be hereinafter more particularly described.

In the drawings, Figure 1 is an elevation of my improved device for retaining heat in foods. Fig. 2 is a plan of the same, showing the cover thrown open. Fig. 3 is an elevation of the inner vessel.' Fig. 4 is a section on line :13, Fig. 3. Fig. 5 is a cross-section. through part of the v essel at one side and also through part of the cover, and Fig. G is a detached vertical section through the union of the top ofthe inner vessel with one of the receptacles.

a designates an outer vessel, preferably made 1n the form of a pail or bucv et and of tin or any other suitable material. The vessel a is provided with a cover a', hinged thereto at 1. y Th cover a has a bottom 2, adapted to fit within the upper end of the outer vessel a. This cover structure forms a vessel in and of itself, and the same is preferably filled with sand or asbestos or some other e ually good non-heat-conducting material a mitted thereto through an opening 'in the top, normally closed by a cap The cover a may be provided with a latch 4, by means of which the same may be secured in position in the upper end of the outer vessel e, and the vessel a is advantageously provided with a handle 5.

t designates an inner vessel, closedboth top and bottom and adapted to fit Within the outer vessel a, the top of the inner vessel b having a flange 6, adapted to rest upon or be secured to an internal rib 7 in the shell of the outer vessel a. The respective inner and outer dimensions of the outer and inner ves- 'sels are such as to leave a space 8 between their sides and bottoms, which space I prefer to fill with sand or some non-heat-conductin material, which may be passed into sai space through. 'an opening in the Wall of the outer vessel, normally covered by a cap` 9.

The inner vessel is provided with a partition-Wall c, extending from the top to the bottom thereof and providing a comparte. ment 10 of about one-third the volume of the inner vessel. I also employ an angular partition-wall d, a portion 11 thereof running parallel with but spaced apart from the adj acent portieri of the straight Wall c. This angular Wall d. together with the straight Wall c, provide the compartments 12 and 13, a part of the latter extending between the por tion 11 of the angular Wall d and the adjacent portions of the straight Walll c.

Within each of the compartments 10, 12, andy 13 I employ a series of receptacles e, e', and e2. Each of. these receptacles is closed at the bottomand at the top is open and secured in the topof the inner vessel I) and is adapted to receive and contain a bottle, can, or other holder for containing food or other substances. f designates a pipe or other connection leading from the upper portion'of the compartment 10 through the ortion 11 of the Wall d and terminating be ow a .depresu IOS sion 14 in the -top of the -inner vessel b, and Within the compartment 12 the pipe f is perforated. y

Centrally vthe depression r1d is provided with an opening lthro h which the stem 15 of a telltale passes, an the top of the inner vessel above the compartment 10 is provided with an opening normallyr closed by a cap 16,

and the compartment 13, surroundin the receptacle e2, is also preferably lled W1th sand or some other non-heat-conducting'material In the use of the deyice hereinbefore de-` scribed the cap 16 is first removed, and Water 'or other heated liquid substantially 'boiling |hetis poured .into the compartment 10, iist fllingthe same and fthen overflowingintolthe compartment 12 by Waycf the pipe f and the perferations therein until the llatter ycompartment is illed, Whichf'oi course will 'be yin- "dicated by the4 telltale. As the `hot liquid `'ov'evoiars fby vthepipej," and fills the y'compart- -ment 12 'it will lose some oi'itsheat in heating lthe Walls ci 'the com artment. This is more .apparent because o being an. overflow than will Ebe the caseof the yliquid inthe compartfanen't v1'0.- Furthermore, the material in the compartment 13'is heated by conduction and radiation of the hot.. liquid in the compart- 'v ments 10 and 12, butonly to an 'appreciable extent. It is therefore apparent that lthe 'contents of these compartments .are at vary- *ing temperatures. The xmilk rorother :food fis *heated hot and fput rinto the vbottles -or .other holders, Which Aare then placed in the recep- 3 5 "teclee-e, c', and e2. The heat lis radiatedfand "'fcondn'cted from thefffoed-i'the same is'hotter .than the lintents 'of i'the compartments, or y*the "food absorbs heat therefrom if ycooler than said contents, and the ratioof-cooling of 4o-thefood is 'in proportion to its heat .and rthe heatof the compartments 1t), 12, :and V13, it

l Y' fleeing `apparent from the foregoing r'that food vvplaced fin the receptacle fe? of the compart- ."ment 13 Will 'cool quickest, that lin the com- 45 'pertinent 12 'will ycool slower, While .that :in

the compartment lO Will-retain fits heatl the Allongest. Theratio'ofthe'cooling of-thecon- 1 jtentsfe the'conipartments will -inga lmeasure be controlled by the `size fof the compart- 5 .o fmentsand the'area oftlieir'hotcontentsl The t '-compartment 1 3 vbeing the smallest willfcool a the quickest and the compartment 10 being the largest will 'ciool' the slowest. Furthermore, as the compartment y13 is filled with a 5 5 fmaterial 'dierent from the material of the compartments 10 and 1'2 and its heat is not y:self-contained it'willl'o course never be as hot as the compartments $0 and 1.2 fand it `willlglose itslheatquicker. VI therefore refer 6o 'to `number these receptacles 1, 2, and

v' l in the'forder .named to indicate the order "in which the Jfood placed therein is to be used, and it' Will also be apparent that the foodior a nights feeding of ali-infant maybeprep'ared CCJPY l em lo 'n m im roved ldevice the 'food Will 'beprerdygforyusepat the proper temperature When required. I claimiaslniy .invention- 1. In a"device1forretaining heat in foods, the combination with an outer vessel, of a spaced-apartinner 'vessel com rising sides, a bottom and ftop so connected)"`as to form a tight liquid-holding receptacle, partition- Walls dividing said inner vessel into internal compartments, a receptacle Within each compartment open'at its upper end and at this end let in through the top and-secured thereto for receiving `.a vesselcontaim'ng Yfoodto rbe kept heated Iand imeanspermitting @the -compartments to be flled with heating medium. i 2. In a device for yretaining heatfin .'foods, :the lcombination with an outer vessel, lof a spaced-apart inner vessel com rising sides, a bottom and Atop so connecte' as ito form .a tight liq1`1id-holding'-receptacle,V partitionat one time, land by lcompartmentsof varying areas, `a receptacle secured thereto for receiving' a vessel 4cerntaining food to be .kept heated, :a xfillin rmaiiorming a communicating means Ibe'tween other tWo of sald rcernpartinents and means permittin'gthe compartments rto be villedwith a receptacle withineach compartment open at jits upper-endandatlthis endietn through the ftop and secured thereto for ifeceiving a `vessel containing' ifood :to be -kept 'heated Land means Vperrnitting 'fthe compartments to `be `filled with heatingmediinn.

. 4. In -a' device ier retaining fheat in foods, thecrnbination with an outer Vessel, -of a bottom and Sto so connecte .as toform a tight 4liquid-ho ding receptacle, a lining between said vessels, a straight vertical partition-Wall within said vinner vessel, a pantIt-ion- Wall at an Iangle to the aforesaid wall and Ahalinfa'part -arallel with a part thereof-and spaced a )art t erelirom, a material filling-the o ening etWeen said Walls and also fillingV t e compartment 'communicating therewlth a plurality oij.fcompartments lof varying sizes, .a rec',A tacle Within each compartment ,epenat its upper end vandat thisend Walls dividing `said linner vessel linto 1internal i terial in-one ofsaid'compantments, .a1 ewice ising sides, a

spaced-apart inner vessel com rising sides, a

land said Walls dividing said inner vessel into within each compartment lopen at 'its upper end andiat this'end let in through the ytop and a plurality of compartments of varying sizes,

vlet in through the -top and secured thereto for receiving a vessel containing food to be kept heated and means permitting the compartments to be lled with heating medium.

5. In a device for retaining heat infoods, the combinationwith an outer vessel, of a spaced-apart inner vessel com rising sides, a bottom and to so connected) as to forma -tight liquid-ho ding receptacle, a lining bedevice forming a communicating means between two of said compartments and means permitting the, compartments to be filledwith heating medium.

6. In a device for retaining heat in foods, the combination with an outer vessel, of a spaced-apart inner vessel comprising sides, a bottom and top so connected as to form a tight liquid-holding receptacle, a lining between said vessels,.a straight vertical partition-.wall within said inner vessel, a partitionwall at an'angle to the aforesaid wall and having a part arallel with a part thereof and space apart t ierei'rom, a material filling the gpening between the said Walls and al-so ling ythe compartment communicating therewith and said walls dividing said inner vessel into a plurality of compartments' of varying sizes, a receptaclewithin each compartment open at its upper end and at this end let in through the top and secured thereto for receiving a vessel containing food to `be kept heated, a device forming a communicating means between other two of said yconipartments and means permitting the' compartments to be 'lled with'heating medium.

` 7. A device for retaining heat in foods, comprising an outer vessel,' a s aced-apart inner' vessel, a straight vertic'a partition- Wall within said inner vessel, an an lar vertical partition-wall also within said inner vessel and a portion of which is parallel with. and spaced apart from said straight vertical Wall, said Walls dividing said inner vessel into j three compartments of Lvarying sizes, means for admitting a hot heating liquid to one of' these compartments, apipe connection leading from one of said compartments to another of said compartments, and va rece tareceive a vessel containing food the y cle in each of saidcompartments adapte to eat in Iwhich ist() be retained for different lengths' oi' time. i

455. A device forretaining heat 4in foods,

` comprising an outer vessel, a spaced-apart removable inner vessel, a straight vertical partition-wall Within said inner vessel, an angular vertical partition-wall also-Within said inner vessel and a ortion of which is parallel with and spaced) apart from said straight vertical wall, said walls dividing said inner vessel into three compartments oi varyin sizes, means for admitting hot heating liqui to one of these compartments, a pipe connection leading from saidcoinpartment to an-4 other o said compartments, a receptacle in y each of said compartments adapted .to receive a vessel containing food, the heat in which is to be retained for difi'erent lengths of time, and a iilling of non-heat-conducting material surrounding the receptacle in the third of said compartments.

9. A device for retaining heat in foods,

comprising an outer vessel, as aced-apart inner vessel, a straight vertica partitionwall within said inner vessel, an angular vertical partition-wall'also within said inner vessel, said walls dividing said inner vessel into a plurality of compartments of varying sizes, a receptacle for each of said com artments for receiving a vessel containing ood, the'heat in which is to be retained for diil'erent lengths of time, means for vadmitting a heating liquid to one of said compartments,V

and a device providingcommunication betweenv said compartment and an ad]acent compartment 'as an overflow therefor.

10. A device for retaining heat in foods,"

comprising an outer vessel, a s :iced-apart Vinner vessel, a straight vertica partitionwall withinsaid inner vessel, an angular vertical partition-wall also within said inner vesc sel and a portion of which is'parallel-with and spaced vapart from said strai ht Wall, said walls dividing said inner vesse into a plurality of compartments of varying sizes, a receptacle in each of saidcompartments adapted't'o receive a vessel containin food the heat in which is to be retained for di erent lengths of time, means for admitting a heating liquid to one of said compartments, and a device providing communication between said compartment and an adjacent compartment as an overflow therefor.

l Signed me this `26th day of May, 1905'.

v FRANK S. GOULDTHRITE. l Witnessesz- DOUGLAS H. McDo-Nam, AGNES H. BUniiE.' 'Y 

